From: Nathan Morrisson <nmorrisson@phytec.com>
To: nm@ti.com, vigneshr@ti.com, kristo@kernel.org, robh@kernel.org,
krzk+dt@kernel.org, conor+dt@kernel.org
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, upstream@lists.phytec.de,
w.egorov@phytec.de
Subject: [PATCH] arm64: dts: ti: am62-phyboard-lyra: Add overlay to increase cpu frequency to 1.4 GHz
Date: Thu, 25 Apr 2024 15:19:25 -0700 [thread overview]
Message-ID: <20240425221925.1781226-1-nmorrisson@phytec.com> (raw)
The am625 is capable of running at 1.4 GHz when VDD_CORE is increased
from 0.75V to 0.85V. Increasing the voltage while the AM625 is
running has not been validated by TI, so we provide an overlay so that
people may choose to run at 1.4 GHz if they need the additional
performance.
Signed-off-by: Nathan Morrisson <nmorrisson@phytec.com>
---
arch/arm64/boot/dts/ti/Makefile | 3 +++
.../k3-am625-phyboard-lyra-1-4-ghz-opp.dtso | 20 +++++++++++++++++++
2 files changed, 23 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 9a722c2473fb..725f7e44f76d 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -22,6 +22,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-mallow.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-yavia.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-1-4-ghz-opp.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62x-phyboard-lyra-gpio-fan.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb
@@ -106,6 +107,8 @@ k3-am625-beagleplay-csi2-ov5640-dtbs := k3-am625-beagleplay.dtb \
k3-am625-beagleplay-csi2-ov5640.dtbo
k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
+k3-am625-phyboard-lyra-1-4-ghz-opp.dtbs := k3-am625-phyboard-lyra-rdk.dtb \
+ k3-am625-phyboard-lyra-1-4-ghz-opp.dtbo
k3-am625-phyboard-lyra-gpio-fan-dtbs := k3-am625-phyboard-lyra-rdk.dtb \
k3-am62x-phyboard-lyra-gpio-fan.dtbo
k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso b/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
new file mode 100644
index 000000000000..6ec6d57ec49c
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-1-4-ghz-opp.dtso
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2024 PHYTEC America LLC
+ * Author: Nathan Morrisson <nmorrisson@phytec.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&vdd_core {
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <850000>;
+};
+
+&a53_opp_table {
+ opp-1400000000 {
+ opp-hz = /bits/ 64 <1400000000>;
+ opp-supported-hw = <0x01 0x0004>;
+ };
+};
--
2.25.1
next reply other threads:[~2024-04-25 22:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-25 22:19 Nathan Morrisson [this message]
2024-06-13 8:58 ` [PATCH] arm64: dts: ti: am62-phyboard-lyra: Add overlay to increase cpu frequency to 1.4 GHz Vignesh Raghavendra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240425221925.1781226-1-nmorrisson@phytec.com \
--to=nmorrisson@phytec.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=kristo@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nm@ti.com \
--cc=robh@kernel.org \
--cc=upstream@lists.phytec.de \
--cc=vigneshr@ti.com \
--cc=w.egorov@phytec.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox